prEN 4434

SLOVENSKI STANDARD
01-december-2025
Aeronavtika - Lahki vodniki iz bakra ali bakrenih zlitin za električne kable -
Standard za proizvod (običajne in ozke tolerance)
Aerospace series - Copper or copper alloy lightweight conductors for electrical cables -
Product standard (Normal and tight tolerances)
Luft- und Raumfahrt - Leichter Leiter aus Kupfer oder Kupferlegierung für elektrische
Leitungen - Produktnorm (Normale und enge Toleranzen)
Série aérospatiale - Conducteurs a tolérances réduites en cuivre ou alliage de cuivre
pour câbles électriques - Norme de produit (Tolérances normales et réduites)
Ta slovenski standard je istoveten z: prEN 4434
ICS:
29.060.20 Kabli Cables
49.060 Letalska in vesoljska Aerospace electric
električna oprema in sistemi equipment and systems
77.150.30 Bakreni izdelki Copper products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2025
ICS 49.060 Will supersede EN 4434:2005
English Version
Aerospace series - Copper or copper alloy lightweight
conductors for electrical cables - Product standard
(Normal and tight tolerances)
Luft- und Raumfahrt - Leichter Leiter aus Kupfer oder
Kupferlegierung für elektrische Leitungen -
Produktnorm (Normale und enge Toleranzen)
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee ASD-
STAN.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 4434:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Conductor materials and construction . 4
4.1 Materials . 4
4.2 Metal plating . 4
4.3 Electrolytic copper . 5
4.4 Copper alloy . 5
4.5 Construction of conductors . 5
4.5.1 Lay length . 5
4.5.2 Joints . 6
4.5.3 Compaction . 6
5 Required characteristics . 6
5.1 General. 6
5.2 Normal tolerances . 6
5.3 Tight tolerances . 8
6 Test methods . 8
7 Designation . 9
8 Marking, packaging and delivery lengths . 9
Bibliography . 10

European foreword
This document (prEN 4434:2025) has been prepared by ASD-STAN.
After enquiries and votes carried out in accordance with the rules of this Association, this document has
received the approval of the National Associations and the Official Services of the member countries of
ASD-STAN, prior to its presentation to CEN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 4434:2005.
— addition of: “The elongation prior to rupture, for stranded copper conductor, shall not be less than
10 %.” in 4.3;
— in Table 1, addition the minimal breaking load for 9 mm section is “1000N”;
— in Table 2, addition the minimal breaking load for 9 mm section is “1000N”.
1 Scope
This document specifies the dimensions, linear resistance, mechanical characteristics, construction and
mass of lightweight conductors, normal and tight tolerances, in copper or copper alloy for electrical
cables for aerospace applications.
2 2
It applies to stranded conductors, with a nominal cross-sectional area of 0,15 mm to 14 mm inclusive.
The conductors for thermocouple extension and fire-resistant cables are not covered by this document.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edi
...